Snowblower won’t throttle down - Snowblower Forum : Snow Blower Forums
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post #1 of 17 Old 02-02-2020, 11:04 AM Thread Starter
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Snowblower won’t throttle down

When I increase the throttle on my snowblower (Yardmachines with 8hp Tecumseh) everything looks as I would expect (linkages, springs, etc) but when I throttle down it doesn’t “snap” back. First thought is okay maybe the spring is broken but it looks fine
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post #2 of 17 Old 02-02-2020, 11:12 AM
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Originally Posted by TheShedTinkerer View Post
When I increase the throttle on my snowblower (Yardmachines with 8hp Tecumseh) everything looks as I would expect (linkages, springs, etc) but when I throttle down it doesn’t “snap” back. First thought is okay maybe the spring is broken but it looks fine
could be that the cable is dry and needs some lube

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post #3 of 17 Old 02-02-2020, 11:14 AM
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Evidently, everything is not fine … just sayin.

I would be taking a close look at the carb setup, and inspect closely for the fault when you throttle down.
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post #4 of 17 Old 02-06-2020, 10:51 PM Thread Starter
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Originally Posted by oneacer View Post
Evidently, everything is not fine … [IMG class=inlineimg]/forum/images/smilies/smile.gif[/IMG] just sayin.

I would be taking a close look at the carb setup, and inspect closely for the fault when you throttle down.

I have posted some pics here of the throttle linkage below..

Let me walk through the pictures and what I did.

I cleaned the carb so I unhooked the govener arm linkages from throttle and carb. Reinstalled everything and linkages are in correct holes.

Pic 1: throttle down, and the plate connecting to linkage is back or (towards the right when looking at picture) Pic 2: throttle up, throttle plate pushed forward (towards the left of the picture) and linkages moved forward Pic 3: throttle down, linkages still forward, and throttle linkage plate still forward or (to the left of the picture).

Is this a faulty spring in the throttle lever, a govener adjustment issue when I took the arm off or something else? It was fine before I took apart which makes me lean towards govener adjustment but idk how or why it would be that far off

https://imgur.com/gallery/EHylNhH
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post #5 of 17 Old 02-06-2020, 11:08 PM
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post #6 of 17 Old 02-06-2020, 11:23 PM
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Did you have the governor arm off?

Skip to five and a half minute mark


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Last edited by Shovel; 02-06-2020 at 11:26 PM.
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post #7 of 17 Old 02-07-2020, 04:37 AM
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Originally Posted by TheShedTinkerer View Post
When I increase the throttle on my snowblower (Yardmachines with 8hp Tecumseh) everything looks as I would expect (linkages, springs, etc) but when I throttle down it doesn’t “snap” back. First thought is okay maybe the spring is broken but it looks fine
Throwing out the welcome mat for your first post. Welcome to the SBF from the Burg'

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post #8 of 17 Old 02-07-2020, 02:47 PM
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Welcome from the Ice Burg! (well we were our sub zero temps finally relented after 6 weeks of -10 and lower.



Clearly something is sticking, you have to play with it to see. I know that is not very techy, but we can't see what yours is doing or not doing. If its running good then its not other issues other than the throttle sticking open and that has many causes and once in a while one out of the blue. I once had an individual grad trash compactor stop in mid cycle. I spent 6 months on and off looking for the cause. Finally found it in a totally unexpected spot.

Took me years to find the cause of a one off front end wobble that was frightening. Hopefully this is quicker.

The point is you go in without pre conceived notions and play with it knowing you are looking for is something that is causing it to stick open/binding.

1998 YT624 Have Owners and Service Manual, Rubber Disc Drive (not hydrostatic)
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post #9 of 17 Old 02-07-2020, 07:30 PM Thread Starter
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Originally Posted by Shovel View Post
Did you have the governor arm off?

Skip to five and a half minute mark


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Should my govenor spring have some slop in it? When it is installed on the snowblower (and even off in my hand) I can really wiggle it, but it’s connected at both points?

I did have the govenor arm off so that will me first thing in the morning.
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post #10 of 17 Old 02-07-2020, 07:35 PM
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Originally Posted by TheShedTinkerer View Post
Should my govenor spring have some slop in it? When it is installed on the snowblower (and even off in my hand) I can really wiggle it, but it’s connected at both points?

I did have the govenor arm off so that will me first thing in the morning.
do you have a shop manual?

that would help with spring placement etc. unless you know someone with a similar machine for reference or a snowblower shop you can look at a similar machine.

very common carb.

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